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147b9635e6
linux/arch/arm64
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Will Deacon 147b9635e6 arm64: cpufeature: Fix feature comparison for CTR_EL0.{CWG,ERG} 
If CTR_EL0.{CWG,ERG} are 0b0000 then they must be interpreted to have
their architecturally maximum values, which defeats the use of
FTR_HIGHER_SAFE when sanitising CPU ID registers on heterogeneous
machines.

Introduce FTR_HIGHER_OR_ZERO_SAFE so that these fields effectively
saturate at zero.

Fixes: 3c739b5710 ("arm64: Keep track of CPU feature registers")
Cc: <stable@vger.kernel.org> # 4.4.x-
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-07-31 18:10:55 +01:00
..
boot arm64: dts: imx8mq: fix SAI compatible 2019-07-23 15:37:31 +08:00
configs ARM: SoC defconfig updates 2019-07-19 17:27:27 -07:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-07-08 20:57:08 -07:00
include arm64: cpufeature: Fix feature comparison for CTR_EL0.{CWG,ERG} 2019-07-31 18:10:55 +01:00
kernel arm64: cpufeature: Fix feature comparison for CTR_EL0.{CWG,ERG} 2019-07-31 18:10:55 +01:00
kvm ARM: 2019-07-12 15:35:14 -07:00
lib treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mm mm/memory_hotplug: allow arch_remove_memory() without CONFIG_MEMORY_HOTREMOVE 2019-07-18 17:08:06 -07:00
net arm64 updates for 5.3: 2019-07-08 09:54:55 -07:00
xen
Kconfig RISC-V updates for v5.3 2019-07-18 12:26:59 -07:00
Kconfig.debug
Kconfig.platforms ARM: SoC platform updates 2019-07-19 17:05:08 -07:00
Makefile arm64: vdso: Fix Makefile regression 2019-07-31 18:08:47 +01:00